package com.lanyun.util;

public class Secretity
{
    public static final String APPID = "";
    public static final String AppSecret = "";

    public static boolean IsNull(String str)
    {
        if(str == null)
        {
            return true;
        }
        str = str.trim();
        if("".equals(str))
        {
            return true;
        }
        else
        {
            return false;
        }
    }
}
